I just ordered from Amazon the Tempil 24423 Templac Advanced LT060 Temperature Indicating Liquid 750 Degree F. I'll use it and post the pictures showing how far the heat migrates toward the case web both quenched and unquenched.
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My salt temp is kept at 945F +/- 3.What temperature are you using for your salt? I've been doing 9 seconds at 550C, with what seems like good results.
Whelp, I’d say it looks like 12 seconds is safe for your case headsExperimental setup:
SBA with PID, set at 932*F
Salt Level just below the bottom of the holder, see first image.
3x S&B 6,5 Creedmoor brass
3x MEN 8x57 brass
Tempilaq 450 strips, from 1" above case mouth, down to the head (I didn't want templac in the salts)(Yes, my paint lines kinda look like dicks)
I used a metronome app, set to 60 BPM, to time brass dunks. One each size at 6 seconds, one at 12, and (8x57 only) one at 12 seconds dunk, with an immediate water quench. One piece of 6,5CM had the tempilaq ruined when i grabbed the strip with my glove pulling it out.
View attachment 7408188
View attachment 7408189
Results
View attachment 7408191
From left to right:
6,5CM 6 seconds, 6,5CM 12 seconds, 8x57 6 seconds, 8x57 12 seconds, 8x57 12 seconds with water quench.
Salt Level just below the bottom of the holder, see first image.
I've not yet started SBA (just ordered the salt and base) so I'm not familiar with the setup. Is that the normal depth of salt to plunge your brass into? I'd think you'd just stick the mouth into the salt, stopping at the start of the shoulder.
When I get time, I have a fairly good test for my home built SBA setup. I had a defective sizing die bump the shoulders back .013" on about 50 30.06 cases. I'm going to anneal them with my SBA, then fire-form them. We'll see what happens...
Vettepilot
When I get time, I have a fairly good test for my home built SBA setup. I had a defective sizing die bump the shoulders back .013" on about 50 30.06 cases. I'm going to anneal them with my SBA, then fire-form them. We'll see what happens...
Vettepilot
Yeah, I'm not expecting problems with them. My plan goes like this. In order to "blow out" the neck and not stretch the case body, I am going to load up some 30-30 cast bullets I have long; out to light jam length. Loaded with maybe 10 to 12 grains of fast powder, this should fire form them back to my chamber spec. As mentioned, I will anneal them first. I need to use up these 30-30 cast bullets anyway...
Shooters World "Buffalo" powder can go as low as 10 grains safely for bullets from 125 to 180 grains in the 30-06 . This is published data on their site . Please note they called for jacketed bullets . Not sure how that translates for cast lead bullets . 1200 FPS was listed for one bullet .Yeah, I'm not expecting problems with them. My plan goes like this. In order to "blow out" the neck and not stretch the case body, I am going to load up some 30-30 cast bullets I have long; out to light jam length. Loaded with maybe 10 to 12 grains of fast powder, this should fire form them back to my chamber spec. As mentioned, I will anneal them first. I need to use up these 30-30 cast bullets anyway...
Vettepilot
Truth is, SBA is unsurpassed as far as temperature control of the brass is concerned.Just as an FYI. Salt bath annealing is used in industry/manufacturing to anneal large brass components all the time, and has been since about the 1930s, and will be for a very long time.
I use it with what I feel to be impeccable results, especially for a newbie shooter. I chose it based on my experience in industry/manufacturing and it’s cost effective nature, and knowing that my goal isn’t to completely anneal the brass into its softest “dead” state, as it seams the AMP does, but to simply take the stress out of the most heavily worked area of the case. The neck and shoulder. My brass lasts forever. I had 15 firings on LRP Alpha 6.5CM before I retired it and moved to SRP in a new barrel. That batch has exactly 10 firings on it now as well and I haven’t lost a single case. My SD/ES are certainly acceptable to me, and the accuracy and precision of my rifle far exceeds anything I thought I could do personally.
If I felt like sacrificing a case, a could even throw it on the Brinell tester and get a reading before and after, but I feel that’s moot at this point.
Those that use SBA, don’t seem to have any issues with their brass at all. In fact, there’s more threads on the neck friction increase due to the surface texture left by induction annealing causing issues with SD/ESs than there is with people struggling with their SBA setups.
You MUST be a fucking bullet sponge, Jar Head! Only a Marine could put Templaq on cases and it come out looking like dicks without even trying!Experimental setup:
SBA with PID, set at 932*F
Salt Level just below the bottom of the holder, see first image.
3x S&B 6,5 Creedmoor brass
3x MEN 303 British brass
Tempilaq 450 strips, from 1" above case mouth, down to the head (I didn't want templac in the salts)(Yes, my paint lines kinda look like dicks)
I used a metronome app, set to 60 BPM, to time brass dunks. One each size at 6 seconds, one at 12, and (303only) one at 12 seconds dunk, with an immediate water quench. One piece of 6,5CM had the tempilaq ruined when i grabbed the strip with my glove pulling it out.
View attachment 7408188
View attachment 7408189
Results
View attachment 7408191
From left to right:
6,5CM 6 seconds, 6,5CM 12 seconds, 303 6 seconds, 303 12 seconds, 303 12 seconds with water quench.
EDIT: Those are 303 cases, not 8x57. I'm an idiot. Guess which akro bins are right next to each other...